david942j/one_gadget

require 'one_gadget/gadget'
# https://gitlab.com/david942j/libcdb/blob/master/libc/libc0.1-2.24-9/lib/x86_64-kfreebsd-gnu/libc-2.24.so
# 
# Advanced Micro Devices X86-64
# 
# GNU C Library (Debian GLIBC 2.24-9) stable release version 2.24, by Roland McGrath et al.
# Copyright (C) 2016 Free Software Foundation, Inc.
# This is free software; see the source for copying conditions.
# There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
# Compiled by GNU CC version 6.3.0 20161229.
# Available extensions:
#     crypt add-on version 2.1 by Michael Glad and others
#     Native POSIX Threads Library by Ulrich Drepper et al
#     GNU Libidn by Simon Josefsson
#     BIND-8.2.3-T5B
# libc ABIs: UNIQUE
# For bug reporting instructions, please see:
# <http://www.debian.org/Bugs/>.

build_id = File.basename(__FILE__, '.rb').split('-').last
OneGadget::Gadget.add(build_id, 254498,
                      constraints: ["writable: rsp+0x40", "{\"sh\", \"-c\", r12, NULL} is a valid argv"],
                      effect: "execve(\"/bin/sh\", rsp+0x30, environ)")
OneGadget::Gadget.add(build_id, 254505,
                      constraints: ["writable: rsp+0x40", "rax == NULL || {rax, \"-c\", r12, NULL} is a valid argv"],
                      effect: "execve(\"/bin/sh\", rsp+0x30, environ)")
OneGadget::Gadget.add(build_id, 254589,
                      constraints: ["[rsp+0x30] == NULL || {[rsp+0x30], [rsp+0x38], [rsp+0x40], [rsp+0x48], ...} is a valid argv"],
                      effect: "execve(\"/bin/sh\", rsp+0x30, environ)")
OneGadget::Gadget.add(build_id, 706911,
                      constraints: ["[r13] == NULL || r13 == NULL || r13 is a valid argv", "[r12] == NULL || r12 == NULL || r12 is a valid envp"],
                      effect: "execve(\"/bin/sh\", r13, r12)")
OneGadget::Gadget.add(build_id, 836077,
                      constraints: ["[rsp+0x70] == NULL || {[rsp+0x70], [rsp+0x78], [rsp+0x80], [rsp+0x88], ...} is a valid argv"],
                      effect: "execve(\"/bin/sh\", rsp+0x70, environ)")
OneGadget::Gadget.add(build_id, 836089,
                      constraints: ["[rsi] == NULL || rsi == NULL || rsi is a valid argv", "[[rax]] == NULL || [rax] == NULL || [rax] is a valid envp"],
                      effect: "execve(\"/bin/sh\", rsi, [rax])")